Communication Apparatus Network Selection via NFC and Wireless LAN
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Solution Overview
Problem
Existing communication systems fail to efficiently manage wireless communications between devices belonging to multiple wireless networks, leading to difficulties in executing wireless communications for target data when a communication apparatus belongs to multiple networks.
Innovation Solution
A communication system comprising a first and second communication apparatus, each equipped with multiple interfaces (NFC and wireless LAN) and a controller that identifies and selects the appropriate wireless network for communication, allowing wireless communication to be executed using a target network among those to which the apparatus belongs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a communication apparatus belongs to multiple wireless networks, then communication flexibility and network options increase, but determining the appropriate network for communication becomes complex and unreliable
Solution Approach 1:
The communication apparatus performs preliminary actions by storing identification information of multiple wireless networks in advance before communication is needed. When communication is required, the apparatus retrieves and compares the current wireless network identification with the stored identification information to determine the appropriate network, eliminating the need for complex real-time decision-making.
Solution Approach 2:
The patent introduces an intermediary mechanism (NFC communication) that facilitates the transfer of network identification information between apparatuses. This intermediary enables reliable network determination by providing a trusted channel for exchanging network identifiers, allowing the communication apparatus to accurately identify which network to use without complex judgment logic.
2Adaptability or versatility
If Bluetooth is used as the primary communication interface, then communication with devices outside the wireless network becomes possible, but communication speed and efficiency decrease
Solution Approach 1:
The patent implements a dynamic communication interface selection mechanism that adapts the communication method based on the communication target. When the target is within the same wireless network, the system dynamically switches to use the high-speed wireless LAN interface. When the target is outside the network, it dynamically uses Bluetooth. This dynamic adaptation resolves the contradiction by optimizing speed for intra-network communication while maintaining versatility for external communication.
3Adaptability or versatility
If the communication apparatus stores multiple wireless network identification information, then network selection capability improves, but device complexity and memory requirements increase
Solution Approach 1:
The patent applies the copying principle by storing only the identification information (such as BSSID or SSID) of wireless networks in the communication apparatus, rather than storing complete network configurations or maintaining multiple network interfaces. This copying approach captures the essential network identity with minimal data, enabling network selection capability while keeping memory requirements and device complexity low.
Data Source
AI summary
A first communication apparatus may receive first identification information for identifying a first wireless network and second identification information for identifying a second wireless network via a first type of interface from a second communication apparatus, in a case where the second communication apparatus currently belongs to both the first wireless network and the second wireless network. The first communication apparatus may select, from among the first and second wireless networks, by using the first and the second identification information, at least one wireless network to which the first communication apparatus currently belongs, and execute a wireless communication for target data with the second communication apparatus via a second type of interface by using a target wireless network included in the selected at least one wireless network.